Pronunciation: [ɹˈatə͡l ˈɒf] (IPA) 
The phrase "rattle off" means to speak quickly and without pause. The spelling of the word "rattle" is [ˈrætl], with the vowel sound pronounced as "æ" like in "cat" and the "t" pronounced with a hard "t" sound. The word "off" is spelled as [ɒf], with the vowel sound pronounced as "ɒ" like in "not." Together, the phrase is pronounced [ˈrætl ɒf]. When using this phrase, be sure to rattle off your words clearly and confidently!
The phrasal verb "rattle off" refers to the act of reciting or speaking rapidly and effortlessly without hesitation or difficulty. It typically implies that the speaker is able to recall or deliver information quickly and fluently. The term "rattle" in this context conveys the notion of speedy and uninterrupted movement, akin to the sound produced by shaking a container of small objects. Meanwhile, "off" emphasizes the effortless and continuous flow of the spoken words.
When someone "rattles off" something, they do so with considerable ease, often without much thought or deliberation. This term is commonly used when someone is listing or reciting a series of items, numbers, or facts in a rapid and rapid-fire manner. For instance, a teacher might "rattle off" a list of dates, a sports commentator might "rattle off" the scores of various matches, or a salesperson might "rattle off" the features and benefits of a product.
The phrase suggests a level of expertise or familiarity with the subject matter being discussed. It conveys the speaker's ability to effortlessly and spontaneously produce information or recollections, showcasing their competence and knowledge on the topic at hand. Consequently, "rattle off" often carries an undertone of impressiveness or astonishment at the speaker's fluency and speed in delivering the information.
The phrase "rattle off" has its origins in the early 19th century. The term "rattle" refers to a rapid, continuous, and rhythmic sound similar to the noise produced by a rattle or a shaking object. It denotes a fast and lively movement or action.
The use of "rattle off" in the context of speech or recitation originates from the idea of delivering something quickly and effortlessly, resembling the sound of a rattle. It suggests the ability to speak rapidly and fluently without pause or hesitation. Initially, the phrase was commonly used in reference to quickly reciting a list or a series of names, numbers, or items. Over time, it has expanded to encompass any swift and uninterrupted spoken delivery of information or conversation.
Thus, "rattle off" conveys the notion of a rapid and rhythmic vocalization, capturing the imagery of a rattling sound while speaking swiftly and smoothly.
